Strings 2008 2 6: Difference between revisions
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== How can biological sequences change == | == How can biological sequences change? == | ||
1. Point mutation or substitution - one base replaced by another | 1. Point mutation or substitution - one base replaced by another | ||
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4. Recombination - crossover and gene conversion | 4. [http://en.wikipedia.org/wiki/Genetic_recombination Recombination] - crossover and gene conversion | ||
(these are like cut-and-paste editing between two very similar texts) | (these are like cut-and-paste editing between two very similar texts) | ||
[[Image:Mutation4.png|recombination]] | [[Image:Mutation4.png|recombination]] | ||
{| border="1" | |||
|Discovery questions: | |||
* Discuss what effects these changes in the DNA potentially have in the protein produce. | |||
|} | |||
For answer and examples see [http://en.wikipedia.org/wiki/Point_mutation here] | |||
Latest revision as of 04:49, 16 January 2008
How can biological sequences change?
1. Point mutation or substitution - one base replaced by another
2. "Indel"
2.1 Deletion - loss of one or more adjacent bases
2.2 Insertion - adding one or more bases
3. Large insertions or deletions
- Tandem repeats of genes
- Transposable elements
4. Recombination - crossover and gene conversion
(these are like cut-and-paste editing between two very similar texts)
Discovery questions:
|
For answer and examples see here
--ThomasHuber 14:56, 10 January 2008 (EST)